Home / 15,155.48-20,908.66-11,175.14

Finding the Fourth Proportional to 15,155.48, 20,908.66 and 11,175.14

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Solution

The fourth proportional to 15,155.48, 20,908.66 and 11,175.14 is: 15,417.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,155.48 : 20,908.66 = 11,175.14 : x
  2. Step 2: Convert to fraction form
    15,155.48/20,908.66 = 11,175.14/x
  3. Step 3: Cross multiply
    15,155.48x = 20,908.66 × 11,175.14
  4. Step 4: Simplify right side
    15,155.48x = 233,657,202.71
  5. Step 5: Solve for x
    x = 233,657,202.71/15,155.48
  6. Step 6: Final answer
    x = 15,417.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.